Question

plz give answer
it's urgent​

Answer 1

Answer:

Given

a = 6

S10 = 195

So, S10 = 10 / 2 × (12 + 9d)

195 = 5 × (12 + 9d)

39 = 12 + 9d

27 = 9d

d = 3

Proving

When n = 10

S10 - 3 = 195 - 3 = 192

S10 - 8 = 195 - 8 = 187

n( n - 3) = 10 ( 10 - 3) = 10 (7) = 70

(n-5)(n-8) = (10 - 5)(10 - 8) = 5 (2) = 10

Bro at least I can't find a way to solve the answer.

Answer 2

Explanation:

Refer to the attachment